Edda Björgvinsdóttir (Stella) and Gísli Rúnar Jónsson (Anton) were married at the time of filming. Their son, Björgvin Franz Gíslason, plays one of children playing in the nature. Their youngest son played Stella's grandson in the sequel.
Two of Stella's children were played by real life siblings Sólveig Arnarsdóttir and Þorleifur Örn Arnarson. Their mother is Þórhildur Þorleifsdóttir, the director of the film.